Types of axons, Biology

Assignment Help:

Types of Axons

Axons are of two types

  1. Myelinated and
  2. Non-myelinated

In the case of myelinated axons the neurilemma is ensheathed by another covering, the myelin sheath, composed of complex lipoproteins. The terminal branches, dendrites, cell body (perikaryon) and the initial region of the axon (the axon hillock) are devoid of myelin sheath: Although the dendrites are relatively short, unsheathed, tapering, irregular in diameter, and branched in a wide array of patterns, the cell body cytoplasm extends into them. The dendrites receive synaptic endings over much of their surface and thus constitute the receptive surface of the neuron. They are like receiving antennae as a nerve cell receives messages along the dendrites but sends messages along the axon.


Related Discussions:- Types of axons

Role of private sector in health care - competition, Role of Private Sector...

Role of Private Sector in Health Care - Competition When the private sector is driven by competition it tends to be more efficient. With competition, benefits like cost reduct

Vitamin C, What is pasteurization of fruit juice?

What is pasteurization of fruit juice?

What is oogenesis , What is Oogenesis ? The female sex cells, or eggs,...

What is Oogenesis ? The female sex cells, or eggs, are formed in the ovaries, the primary sex organs of the female. The precursor of the egg cells, or oogonia, are formed duri

Byproducts of low digestibility high in nitrogen, Byproducts of the food i...

Byproducts of the food industry, such as coffee residues, fruit pulp and cocoa meal are of low energy value, but are relatively high in nitrogen. In additional, animal excreta tend

What is the function of the feet in molluscs, What is the function of the f...

What is the function of the feet in molluscs? How is the mollusc foot related to the name given to the classes of the phylum? The mollusc foot has the function of locomotion, s

............., notochotr is absent in the group ...........

notochotr is absent in the group ...........

Use of aldehydes as chemical sterilant, Q. Use of Aldehydes as chemical ste...

Q. Use of Aldehydes as chemical sterilant? Formaldehyde: widely employed for the fumigation of operation theatres. Glutaraldehyde: commercial preparations are active at

Why is it important to be familiar with the laboratory, Why is it important...

Why is it important to be familiar with the laboratory apparatus and their uses? If you do not use instruments or lab apparatuses correctly (or use an apparatus for something i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd